Programs · Rocket Lab
Neutron
Rocket Lab’s reusable medium-lift rocket, built to take on Falcon 9.
The goal
Give satellite constellations, NASA and the U.S. military a second reusable medium-lift rocket, so launching big batches of satellites doesn’t depend on one company.
Where it stands
On October 14, 2026, Rocket Lab moved Neutron’s first launch into 2027. It is replacing a carbon composite propellant dome that had flaws. A tank failed a pressure test in January 2026, which had already pushed the date back. Rocket Lab plans to name a launch date once testing wraps up in early 2027.
Program details last checked October 30, 2026. Rocket Lab Neutron
Coming up
Get launch alertsNothing on the launch calendar yet. Launches appear here as soon as they have a date.
Missions: flown and planned
2027 (no date yet)
First flight
The debut test flight from Wallops.
After the debut
Constellation launches
Batches of broadband and imaging satellites.
After certification
National security launches
Missions for the U.S. Space Force once Neutron is certified.
Future dates are the operator’s current targets and often slip.
Projects
Archimedes engine
Rocket Lab’s own reusable engine. Nine of them power the first stage.
“Hungry Hippo” fairing
The nose cone stays attached to the booster and opens like jaws to release the second stage.
Carbon composite structure
The whole rocket is built from carbon composite to keep it light.
Launch Complex 3
Neutron’s pad at the Mid-Atlantic Regional Spaceport in Virginia.